Partial forced expiratory flow-volume curves obtained by the rapid chest compression technique are being widely used to assess pulmonary function in infants and young children. The aim of this study is to assess whether in this age group flow limitation is achieved with the partial forced expiratory flow-volume curve with rapid chest compression. In eight infants and young children sedated with...

A finite element model of the 50 percentile male was developed based on geometrical surface generated from medical images. First, an interactive multi-block meshing approach was used to generate high quality quadrilateral and hexahedral meshes of the thorax anatomical structures. Second, a methodology based on the mesh blocks was developed to assign cortical thickness data taken from a micro-CT...

The effect of focus splitting after propagation of focused ultrasound through a rib cage is investigated theoretically. It is shown that the mechanism of this effect is caused by the interference of waves from two or more spatially separated sources, such as intercostal spaces. Analytical estimates of the parameters of splitting are obtained, i.e., the number of foci, their amplitudes, diameter...

To fully understand the effects of aging on the integrity of the normal skeleton, detailed geometric models are needed to complement material property data. The purpose of this research is to develop a predictive model for age-related changes in rib-cage geometry using the generalized Procrustes approach, an advanced method of shape analysis. This predictive model is coupled with the finite ele...

INTRODUCTION True subclavian artery aneurysms are relatively rare lesions. Thoracic outlet compression is responsible for 75% of aneurysms. They are formed as a result of compression by, for example a cervical rib. CASE PRESENTATION We present a case of subclavian artery aneurysm secondary to a cervical rib in a 25-year-old young Asian adult, who presented with an acutely ischaemic upper limb...

Orthotic treatment of infantile scoliosis represents a challenge: 1. Most of them are progressive 2. Different etiologies 3. Associated diseases 4. Smaller size anatomy 5. Immature rib cage Types: 1. Braces • Do not provide immediate correction • Treatment aimed to “hold” the spine and prevent further progression • Risk of chest deformity in case of braces constricting the thorax • Literature d...